*SUPPORT*
IN: wif fep fep OUT: RED RED RED RED
IN: dax OUT: BLUE
IN: tufa zup wif OUT: RED GREEN GREEN
IN: blicket wif gazzer OUT: YELLOW RED RED
IN: wif gazzer OUT: RED RED
IN: tufa dax gazzer zup wif OUT: RED GREEN BLUE BLUE GREEN BLUE BLUE
IN: dax zup wif OUT: RED BLUE BLUE
IN: wif tufa gazzer OUT: RED GREEN GREEN
IN: tufa zup wif zup blicket OUT: YELLOW RED GREEN GREEN RED GREEN GREEN
IN: wif dax gazzer OUT: RED BLUE BLUE
IN: tufa zup tufa fep OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: blicket tufa gazzer OUT: YELLOW GREEN GREEN
IN: wif zup dax OUT: BLUE RED RED
IN: blicket gazzer fep OUT: YELLOW YELLOW YELLOW YELLOW

*QUERY*
IN: tufa tufa OUT: GREEN GREEN
IN: wif gazzer zup wif OUT: RED RED RED RED RED
IN: wif blicket dax gazzer OUT: RED YELLOW BLUE BLUE
IN: blicket OUT: YELLOW
IN: blicket gazzer OUT: YELLOW YELLOW
IN: blicket gazzer zup wif OUT: RED YELLOW YELLOW YELLOW YELLOW
IN: tufa OUT: GREEN
IN: wif OUT: RED
IN: blicket dax gazzer fep OUT: YELLOW BLUE BLUE YELLOW BLUE BLUE
IN: tufa gazzer OUT: GREEN GREEN

*GRAMMAR*
dax -> BLUE 
 wif -> RED 
 blicket -> YELLOW 
 tufa -> GREEN 
 u1 gazzer -> [u1] [u1] 
 x1 fep -> [x1] [x1] 
 x1 zup u1 -> [u1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 